Daniel,
I have just created another (standard) account on my MacBook Pro. If I activate Photo Mechanic on this second user account, can I still use Photo Mechanic on my main account?
I expect so, yes. I think it will not count as another activation, either. But if you run into problems, contact support.
By email: support@camerabits.com
By phone: +1 503.547.2888
Hours: Mon-Fri, 9:00am-5:00pm [PST/PDT]